In order to initialize the LEDs and other chips, the CPU needs to be running properly, which requires a good CPU, clock, and CPU reset, plus the EPROMs that hold the CPU code need to have the correct data and be connected properly to the address and data buses. Also, the SRAM chips need to be working and connected properly as well. So a lot of chips are involved in having the CPU execute code properly, including some small support logic chips. Bob
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RE: [chromapolaris] Quick question help from Polaris Users
2019-02-26 by Bob Grieb